Nut-lock



J. H. WILLIAMS.

NUT LOOK.

(No Model.)

Patented Mar. 18, 1890,

A ITRIEEEEEj \tion of my improvement in nut-locks.

UNITED STATES PATENT OFFICE.

JOHN H. WVILLIAMS, OF IVATERLOO, IOIVA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent N0. 423,890, dated March 18, 1890.

Application filed May 13, 1889.

To all whom it may concern:

Be it known that I, JOHN H. WILLIAMS, a citizen of the United States, residing at Waterloo, in the county of Black Hawk and State of Iowa,have invented certain new and useful Improvements in Nut-Locks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

The invention relates to the locking of threaded nuts 011 bolts, rods, shafts,&c., so as to prevent their becoming loose or coming off.

My improved nut-lock consists in the following construction, which will first be fully described, so thatthose skilled in the art may construct and use -the same, and the features of novelty then recited in the claim.

Figure 1 of the drawings is a front eleva- Fig. 2 represents an edge view of the same. Fig. 3 is a vertical section through the line as m. Fig. 4 is a sectional view showing a modification of the nut-lock.

1 1 represent the base of the lock-nut, which is preferably beveled, as shown, so as to rest upon the inclined fish-plate or upon the flange of a railroad-rail.

2 represents the slot which receives the bolt the nut of which it is desired to look. It is rounded at the upper end of the slot; but it may be square or any other desired shape at that point. The point 3 is cut away, as

shown, to facilitate the insertion of the locking-plate upon the bolt, especially when it is used in conjunction with a railway fish-plate. The point or end 4 is enlarged so as to afford a bearing at that end.

5 represents a ledge or recess cut in the front face of the nut-lock.

Serial 110310 554. (No model.)

6 is an offset in the recess 5, and 7 is a similar offset, but of different shape, diagonally opposite offset 6. The bottoms of these offsets are on the same plane as the ledge 5, the walls of which are carried back to correspond to the shape of the same.

The outer edges of the lock-nut are curved, as shown. The rear face of the nut-lock preferably lies in a single plane; but I may bevel the rear edge of the slot 2, so as to receive a corresponding washer or a combination nut and washer. This bevel S is shown in Fig. 4E. The slot 2 extends in an oblique line from the base-line of the nut-lock, and the nut has its two opposite sides lying in the same oblique line when the nut-lock plate is slipped upon and under the nut. The nut is then turned slightly to the left, so that its diagonally-opposite corners rest within the offsets 6 and 7. The nut-lock plate is then prevented from coming off the nut and the nut itself locked in place.

I contemplate using my nut-lock plate in any manner and in any position in which it may be applicable.

Having described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

A nut-lock plate of the form and character described, having a single open slot inclined to the base or bottom line of the plate, a bevel on the under side of the plate along the slotedge, a ledge on the outer or opposite side of the plate adjacent to the slot-edge, and recesses in the ledge opposite each other, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN H. VILLIAHS.

Witnesses:

Louis A. COBB, F. M. SHOEMAKER. 

